Copy of Ember coffee mug control system heating element - on Fri, 12/27/2024 - 19:56 Designer260461 × Member for 3 months 3 designs 1 groups Welcome to the community!! https://explore.partquest.com/node/685390 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/685390"></iframe> Title Description <p>This is a model of an Ember coffee mug -- a battery-powered, state-of-the-art beverage container that controls the temperature of your beverage to keep it at the setpoint you specify for a couple of hours.</p> <p>See https://ember.com/</p> <p>This model simulates the process of filling the mug with a hot liquid and maintaining it at the setpoint until the battery is exhausted.</p> <p>This model includes modeling of the PCM (Phase Change Material). From the measurements used to characterize the actual device, it appears that the PCM contains multiple melting-point materials (see experimental results here: https://www.systemvision.com/design/ember-coffee-mug-2-pcm-experimental-data-0), thus two were included –at melting points of 47C and 52C respectively. The thermal mass of the liquid is modeled by the block with a “coffee cup” symbol. The feedback control is simple proportional gain. The battery is Li-Ion chemistry with a capacity calibrated from measurements on the real-life temperature profile over time – estimated as 5 cells in series (total ~17 V), since the charger voltage was just under 20 V, with 130 milliamp-hour capacity each, for a total of 650 milliamp-hours capacity.</p> <p>The red wires are thermal, with temperature as the across variable and heat flow as the conserved through variable. Black wires are electrical, with voltage as the across variable and current as the conserved through variable. The green wires are directional control signals (modeling the control system variables).</p> <p>The block labeled “Temp” models the temperature sensor, feeding back the temperature to the proportional controller. The block on the far-left in the setpoint, with a step-input from ambient to the desired beverage temperature.</p> <p>For more information see </p> <p><a href="https://beta.systemvision.com/blog/ember-coffee-mug-virtual-teardown-july-11-2019">https://systemvision.com/blog/ember-coffee-mug-virtual-teardown-july-11-2019</a></p> About text formats Tags thermalemberPCMBatterylithium ion Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None -
Ember coffee mug control system heating element - on Mon, 12/23/2024 - 17:00 Designer260333 × Member for 3 months 2 weeks 4 designs 2 groups Welcome to the community!! https://explore.partquest.com/node/685239 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/685239"></iframe> Title Description <p>This is a model of an Ember coffee mug -- a battery-powered, state-of-the-art beverage container that controls the temperature of your beverage to keep it at the setpoint you specify for a couple of hours.</p> <p>See https://ember.com/</p> <p>This model simulates the process of filling the mug with a hot liquid and maintaining it at the setpoint until the battery is exhausted.</p> <p>This model includes modeling of the PCM (Phase Change Material). From the measurements used to characterize the actual device, it appears that the PCM contains multiple melting-point materials (see experimental results here: https://www.systemvision.com/design/ember-coffee-mug-2-pcm-experimental-data-0), thus two were included –at melting points of 47C and 52C respectively. The thermal mass of the liquid is modeled by the block with a “coffee cup” symbol. The feedback control is simple proportional gain. The battery is Li-Ion chemistry with a capacity calibrated from measurements on the real-life temperature profile over time – estimated as 5 cells in series (total ~17 V), since the charger voltage was just under 20 V, with 130 milliamp-hour capacity each, for a total of 650 milliamp-hours capacity.</p> <p>The red wires are thermal, with temperature as the across variable and heat flow as the conserved through variable. Black wires are electrical, with voltage as the across variable and current as the conserved through variable. The green wires are directional control signals (modeling the control system variables).</p> <p>The block labeled “Temp” models the temperature sensor, feeding back the temperature to the proportional controller. The block on the far-left in the setpoint, with a step-input from ambient to the desired beverage temperature.</p> <p>For more information see </p> <p><a href="https://beta.systemvision.com/blog/ember-coffee-mug-virtual-teardown-july-11-2019">https://systemvision.com/blog/ember-coffee-mug-virtual-teardown-july-11-2019</a></p> About text formats Tags thermalemberPCMBatterylithium ion Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None -
Copy of Ember coffee mug control system heating element - on Tue, 10/22/2024 - 09:28 Designer258751 × Member for 6 months 4 designs 1 groups Welcome to the community!! https://explore.partquest.com/node/675741 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/675741"></iframe> Title Description <p>This is a model of an Ember coffee mug -- a battery-powered, state-of-the-art beverage container that controls the temperature of your beverage to keep it at the setpoint you specify for a couple of hours.</p> <p>See https://ember.com/</p> <p>This model simulates the process of filling the mug with a hot liquid and maintaining it at the setpoint until the battery is exhausted.</p> <p>This model includes modeling of the PCM (Phase Change Material). From the measurements used to characterize the actual device, it appears that the PCM contains multiple melting-point materials (see experimental results here: https://www.systemvision.com/design/ember-coffee-mug-2-pcm-experimental-data-0), thus two were included –at melting points of 47C and 52C respectively. The thermal mass of the liquid is modeled by the block with a “coffee cup” symbol. The feedback control is simple proportional gain. The battery is Li-Ion chemistry with a capacity calibrated from measurements on the real-life temperature profile over time – estimated as 5 cells in series (total ~17 V), since the charger voltage was just under 20 V, with 130 milliamp-hour capacity each, for a total of 650 milliamp-hours capacity.</p> <p>The red wires are thermal, with temperature as the across variable and heat flow as the conserved through variable. Black wires are electrical, with voltage as the across variable and current as the conserved through variable. The green wires are directional control signals (modeling the control system variables).</p> <p>The block labeled “Temp” models the temperature sensor, feeding back the temperature to the proportional controller. The block on the far-left in the setpoint, with a step-input from ambient to the desired beverage temperature.</p> <p>For more information see </p> <p><a href="https://beta.systemvision.com/blog/ember-coffee-mug-virtual-teardown-july-11-2019">https://systemvision.com/blog/ember-coffee-mug-virtual-teardown-july-11-2019</a></p> About text formats Tags thermalemberPCMBatterylithium ion Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None -
Copy of Hierachical battery Model - on Thu, 03/28/2024 - 06:24 Designer255368 × Member for 1 year 1 designs 1 groups Welcome to the community!! https://explore.partquest.com/node/644499 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/644499"></iframe> Title Description <p>This circuit models a LiFePO4 cell voltage.</p> <p>Based off of the model described in:</p> <p>Liao Chenglin; Li Huiju; Wang Lifang, "A dynamic equivalent circuit model of LiFePO4 cathode material for lithium ion batteries on hybrid electric vehicles," Vehicle Power and Propulsion Conference, 2009. VPPC '09. IEEE , vol., no., pp.1662,1665, 7-10 Sept. 2009</p> <p>doi: 10.1109/VPPC.2009.5289681</p> <p>see also http://www.systemvision.com/design/dynamic-equivalent-circuit-model-lifepo4-batteries</p> <p>parameters:</p> <p>initial SOC [no units] (0.0 - 1.0)</p> <p>initial charge capacity [Amphour] (> 0.0)</p> <p>See this test circuit, which implements a hierarchical version of this model:</p> <p>https://www.systemvision.com/design/test-battery-vocfsoc</p> About text formats Tags Batterystate-of-chargeHierarchicalOIT Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None -
Copy of ePower_991 - on Mon, 11/27/2023 - 09:36 Designer251518 × Member for 1 year 4 months 2 designs 1 groups Welcome to the community!! https://explore.partquest.com/node/622584 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/622584"></iframe> Title Description <p>This circuit shows how this fuel cell responds to an abrupt change in the load current. This reflects the finite time that it takes for the fuel cell to respond, internally, to the changing external conditions.</p> About text formats Tags fuel cellHydrogenBatteryelectro-chemical Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None -
Copy of ePower_991 - on Mon, 11/27/2023 - 09:36 Designer251518 × Member for 1 year 4 months 2 designs 1 groups Welcome to the community!! https://explore.partquest.com/node/622584 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/622584"></iframe> Title Description <p>This circuit shows how this fuel cell responds to an abrupt change in the load current. This reflects the finite time that it takes for the fuel cell to respond, internally, to the changing external conditions.</p> About text formats Tags fuel cellHydrogenBatteryelectro-chemical Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None -
Copy of Ember coffee mug control system heating element - on Tue, 07/11/2023 - 11:05 Designer247402 × Member for 1 year 8 months 2 designs 1 groups Welcome to the community!! https://explore.partquest.com/node/601007 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/601007"></iframe> Title Description <p>This is a model of an Ember coffee mug -- a battery-powered, state-of-the-art beverage container that controls the temperature of your beverage to keep it at the setpoint you specify for a couple of hours.</p> <p>See https://ember.com/</p> <p>This model simulates the process of filling the mug with a hot liquid and maintaining it at the setpoint until the battery is exhausted.</p> <p>This model includes modeling of the PCM (Phase Change Material). From the measurements used to characterize the actual device, it appears that the PCM contains multiple melting-point materials (see experimental results here: https://www.systemvision.com/design/ember-coffee-mug-2-pcm-experimental-data-0), thus two were included –at melting points of 47C and 52C respectively. The thermal mass of the liquid is modeled by the block with a “coffee cup” symbol. The feedback control is simple proportional gain. The battery is Li-Ion chemistry with a capacity calibrated from measurements on the real-life temperature profile over time – estimated as 5 cells in series (total ~17 V), since the charger voltage was just under 20 V, with 130 milliamp-hour capacity each, for a total of 650 milliamp-hours capacity.</p> <p>The red wires are thermal, with temperature as the across variable and heat flow as the conserved through variable. Black wires are electrical, with voltage as the across variable and current as the conserved through variable. The green wires are directional control signals (modeling the control system variables).</p> <p>The block labeled “Temp” models the temperature sensor, feeding back the temperature to the proportional controller. The block on the far-left in the setpoint, with a step-input from ambient to the desired beverage temperature.</p> <p>For more information see </p> <p><a href="https://beta.systemvision.com/blog/ember-coffee-mug-virtual-teardown-july-11-2019">https://systemvision.com/blog/ember-coffee-mug-virtual-teardown-july-11-2019</a></p> About text formats Tags thermalemberPCMBatterylithium ion Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None -
Copy of LiFePO4 battery cell - on Wed, 12/02/2020 - 09:12 Designer236952 × Member for 4 years 3 months 2 designs 1 groups Add a bio to your profile to share information about yourself with other SystemVision users. https://explore.partquest.com/node/386077 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/386077"></iframe> Title Description <p>This circuit models a LiFePO4 cell voltage.</p> <p>Based off of the model described in:</p> <p>Liao Chenglin; Li Huiju; Wang Lifang, "A dynamic equivalent circuit model of LiFePO4 cathode material for lithium ion batteries on hybrid electric vehicles," Vehicle Power and Propulsion Conference, 2009. VPPC '09. IEEE , vol., no., pp.1662,1665, 7-10 Sept. 2009</p> <p>doi: 10.1109/VPPC.2009.5289681</p> <p>see also http://www.systemvision.com/design/dynamic-equivalent-circuit-model-lifepo4-batteries</p> <p>parameters:</p> <p>initial SOC [no units] (0.0 - 1.0)</p> <p>initial charge capacity [Coulombs] (> 0.0)</p> About text formats Tags LiFePO4Batterystate-of-charge Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None -
Copy of LiFePO4 battery cell - on Wed, 12/02/2020 - 08:28 Designer236952 × Member for 4 years 3 months 2 designs 1 groups Add a bio to your profile to share information about yourself with other SystemVision users. https://explore.partquest.com/node/386066 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/386066"></iframe> Title Description <p>This circuit models a LiFePO4 cell voltage.</p> <p>Based off of the model described in:</p> <p>Liao Chenglin; Li Huiju; Wang Lifang, "A dynamic equivalent circuit model of LiFePO4 cathode material for lithium ion batteries on hybrid electric vehicles," Vehicle Power and Propulsion Conference, 2009. VPPC '09. IEEE , vol., no., pp.1662,1665, 7-10 Sept. 2009</p> <p>doi: 10.1109/VPPC.2009.5289681</p> <p>see also http://www.systemvision.com/design/dynamic-equivalent-circuit-model-lifepo4-batteries</p> <p>parameters:</p> <p>initial SOC [no units] (0.0 - 1.0)</p> <p>initial charge capacity [Coulombs] (> 0.0)</p> About text formats Tags LiFePO4Batterystate-of-charge Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None -
Copy of LiFePO4 battery cell - on Mon, 11/30/2020 - 17:56 Designer236884 × Member for 4 years 4 months 1 designs 1 groups Add a bio to your profile to share information about yourself with other SystemVision users. https://explore.partquest.com/node/385570 <iframe allowfullscreen="true" referrerpolicy="origin-when-cross-origin" frameborder="0" width="100%" height="720" scrolling="no" src="https://explore.partquest.com/node/385570"></iframe> Title Description <p>This circuit models a LiFePO4 cell voltage.</p> <p>Based off of the model described in:</p> <p>Liao Chenglin; Li Huiju; Wang Lifang, "A dynamic equivalent circuit model of LiFePO4 cathode material for lithium ion batteries on hybrid electric vehicles," Vehicle Power and Propulsion Conference, 2009. VPPC '09. IEEE , vol., no., pp.1662,1665, 7-10 Sept. 2009</p> <p>doi: 10.1109/VPPC.2009.5289681</p> <p>see also http://www.systemvision.com/design/dynamic-equivalent-circuit-model-lifepo4-batteries</p> <p>parameters:</p> <p>initial SOC [no units] (0.0 - 1.0)</p> <p>initial charge capacity [Coulombs] (> 0.0)</p> About text formats Tags LiFePO4Batterystate-of-charge Select a tag from the list or create your own.Drag to re-order taxonomy terms. License - None -
