1. Date of download: 6/27/2016 Copyright © ASME. All rights reserved. From: Determination of Heat Transfer Characteristics of Solar Thermal Collectors as Heat Source for a Residential Heat Pump J. Sol. Energy Eng. 2016;138(4):041011-041011-8. doi:10.1115/1.4033595 (a) Possible connections of a solar thermal collector in a residential heat pump system for SH and hot water production, (b) investigated series system setup for SH Figure Legend:

2. Date of download: 6/27/2016 Copyright © ASME. All rights reserved. From: Determination of Heat Transfer Characteristics of Solar Thermal Collectors as Heat Source for a Residential Heat Pump J. Sol. Energy Eng. 2016;138(4):041011-041011-8. doi:10.1115/1.4033595 Equivalent thermal network for flat-plate solar collector with (left) and without (right) solar radiation (adapted from Ref.[10]) Figure Legend:

3. Date of download: 6/27/2016 Copyright © ASME. All rights reserved. From: Determination of Heat Transfer Characteristics of Solar Thermal Collectors as Heat Source for a Residential Heat Pump J. Sol. Energy Eng. 2016;138(4):041011-041011-8. doi:10.1115/1.4033595 Solar heat pump system comprising solar thermal collectors, electrical back-up, heat pump, storage tank, and residence (with indication of measurement points) Figure Legend:

4. Date of download: 6/27/2016 Copyright © ASME. All rights reserved. From: Determination of Heat Transfer Characteristics of Solar Thermal Collectors as Heat Source for a Residential Heat Pump J. Sol. Energy Eng. 2016;138(4):041011-041011-8. doi:10.1115/1.4033595 COP of the modeled heat pump Figure Legend:

5. Date of download: 6/27/2016 Copyright © ASME. All rights reserved. From: Determination of Heat Transfer Characteristics of Solar Thermal Collectors as Heat Source for a Residential Heat Pump J. Sol. Energy Eng. 2016;138(4):041011-041011-8. doi:10.1115/1.4033595 Residence monthly heating energy use Figure Legend:

6. Date of download: 6/27/2016 Copyright © ASME. All rights reserved. From: Determination of Heat Transfer Characteristics of Solar Thermal Collectors as Heat Source for a Residential Heat Pump J. Sol. Energy Eng. 2016;138(4):041011-041011-8. doi:10.1115/1.4033595 Electrical energy use for heat pump compressor and back-up as function of global solar collector heat loss coefficient Figure Legend:

7. Date of download: 6/27/2016 Copyright © ASME. All rights reserved. From: Determination of Heat Transfer Characteristics of Solar Thermal Collectors as Heat Source for a Residential Heat Pump J. Sol. Energy Eng. 2016;138(4):041011-041011-8. doi:10.1115/1.4033595 Availability of solar heat as low temperature heat source to the heat pump Figure Legend:

8. Date of download: 6/27/2016 Copyright © ASME. All rights reserved. From: Determination of Heat Transfer Characteristics of Solar Thermal Collectors as Heat Source for a Residential Heat Pump J. Sol. Energy Eng. 2016;138(4):041011-041011-8. doi:10.1115/1.4033595 Heat pump system SPF1 Figure Legend:

9. Date of download: 6/27/2016 Copyright © ASME. All rights reserved. From: Determination of Heat Transfer Characteristics of Solar Thermal Collectors as Heat Source for a Residential Heat Pump J. Sol. Energy Eng. 2016;138(4):041011-041011-8. doi:10.1115/1.4033595 Heat pump system SPF2 Figure Legend:

10. Date of download: 6/27/2016 Copyright © ASME. All rights reserved. From: Determination of Heat Transfer Characteristics of Solar Thermal Collectors as Heat Source for a Residential Heat Pump J. Sol. Energy Eng. 2016;138(4):041011-041011-8. doi:10.1115/1.4033595 SPF2 as a function of collector area and storage volume Figure Legend:

11. Date of download: 6/27/2016 Copyright © ASME. All rights reserved. From: Determination of Heat Transfer Characteristics of Solar Thermal Collectors as Heat Source for a Residential Heat Pump J. Sol. Energy Eng. 2016;138(4):041011-041011-8. doi:10.1115/1.4033595 Availability (%) of the solar heat as low temperature heat source to the heat pump as a function of collector U sc value (for a collector area of 12.5, 25, and 37.5 m 2 and a storage volume of 500 l) Figure Legend:

12. Date of download: 6/27/2016 Copyright © ASME. All rights reserved. From: Determination of Heat Transfer Characteristics of Solar Thermal Collectors as Heat Source for a Residential Heat Pump J. Sol. Energy Eng. 2016;138(4):041011-041011-8. doi:10.1115/1.4033595 (a) Availability (%) of the solar heat as low temperature heat source to the heat pump and (b) SPF2 as a function of the solar collector (UA) sc value (for a storage volume of 250, 500, and 750 l) Figure Legend: