566
D. Yoshidome et al.
We plotted the correlation between the average outside air temperature and the
cooling load (Fig. 37.12). The required capacity of the ground heat pump was calculated by linear approximation. Then, it turned out that the geothermal heat pump
needs the capacity of 75 kW. Also, due to the fact that similar problems did not
occur in store B, the required cooling capacity is lower than store C because store B
has relatively few windows and has high insulation performance due to the structure
of the building. As a countermeasure against air conditioning malfunction, Store C
added an air conditioner with an air heat source, resulting in a significant increase in
costs.
37.4.2 Operation Analysis of the Absorption Refrigerator
The adsorption type refrigerator operates under constant summer conditions and uses
the low temperature heat source obtained from the solar heat collector to supply cold
heat into the system of geothermal heat pump. The system flow is shown in the
Fig. 37.13.
Here, we organized the T3 and T4 at the working day of the refrigerator. Then,
we found that endothermic was performed about 1 to 3 degrees on the working day
(Fig. 37.14). Moreover, we confirmed that when the outside air temperature is higher
the output of the refrigerator also increased. It is considered that this is because the
higher the heat source temperature of the adsorption type refrigerator, the higher the
COP.
Fig. 37.13 The system flow
of adsorption type
refrigerator supply
Fig. 37.14 Average outside
temperature and and
T4
D. Yoshidome et al.
We plotted the correlation between the average outside air temperature and the
cooling load (Fig. 37.12). The required capacity of the ground heat pump was calculated by linear approximation. Then, it turned out that the geothermal heat pump
needs the capacity of 75 kW. Also, due to the fact that similar problems did not
occur in store B, the required cooling capacity is lower than store C because store B
has relatively few windows and has high insulation performance due to the structure
of the building. As a countermeasure against air conditioning malfunction, Store C
added an air conditioner with an air heat source, resulting in a significant increase in
costs.
37.4.2 Operation Analysis of the Absorption Refrigerator
The adsorption type refrigerator operates under constant summer conditions and uses
the low temperature heat source obtained from the solar heat collector to supply cold
heat into the system of geothermal heat pump. The system flow is shown in the
Fig. 37.13.
Here, we organized the T3 and T4 at the working day of the refrigerator. Then,
we found that endothermic was performed about 1 to 3 degrees on the working day
(Fig. 37.14). Moreover, we confirmed that when the outside air temperature is higher
the output of the refrigerator also increased. It is considered that this is because the
higher the heat source temperature of the adsorption type refrigerator, the higher the
COP.
Fig. 37.13 The system flow
of adsorption type
refrigerator supply
Fig. 37.14 Average outside
temperature and and
T4