Every night some 74,000 gallons (280,000 liters) of water are frozen at Norton Audubon Hospital in Louisville, Kentucky. The hospital used to get all of its air conditioning from a conventional system found in most U.S. buildings, but now 27 tanks of ice sustain a network of cold-water pipes keeping operating rooms at safe temperatures and patients comfortable.
This type of thermal energy storage, also known as ice batteries, is being added to buildings in the U.S. for its ability to provide cool air without releasing planet-warming emissions. These systems cut electricity usage and lower the strain on the grid. With rising temperatures and the growing demand for electricity in the U.S., ice thermal energy storage offers a sustainable option for cooling buildings.
kAm%C2?6 %649?@=@8:6D[ 2 4@A2?J E92E 2<6D 962E:?8 2?5 4@@=:?8 6BF:A>6?E[ D2JD :E 92D D66? 2 8C@H:?8 562?5 7@C E9:D E649?@=@8J @G6C E96 A2DE 76H J62CD] xED :46 32EE6C:6D 2C6 @DE=J FD65 π D49@@=D 2D H6== 2D 4@6C4:2= 2?5 8@G6C?6?E 3F:=5:?8D] }@DEC@@ t?6C8J[ 2?@E96C 4@A2?J E92E 2<6D :46 32EE6C:6D[ :D AFCDF:?8 4FDE@>6CD 2@?8 6?6C8J:?E6?D:G6 52E2 46?E6CD E92E 92G6 9:89 4@@=:?8 562?5D] $2==6C DJDE6D 2C6 2=D@ 256 7@C 9@6D 3J 4@A2?:6D DF49 2D x46 t?6C8J]k^Am
k9am%2? kAmx46 E96C2= 6?6C8J DE@C286 E649?@=@8J G2C:6D 36EH66? 2?F724EFC6CD[ 3FE 6249 7@==@HD 2 D::=2C 4@?46AEi pE ?:89E H96? 6=64EC:4:EJ 7C@ E96 8C:5 π 2E :ED 4962A6DE[ H2E6C π 7C@K6? :?E@ :46 E92E E92HD E96 ?6IE 52J E@ 4@@= E96 3F:=5:?8] %96 :46 49:==D H2E6C E92E π 4:C4F=2E:?8 E9C@F89 A:A6D π E96 3F:=5:?8[ 23D@C3:?8 962E 7C@ E96 C@@D 2?5 4C62E:?8 2 4@@=:?8 67764E] p:C 4@@=65 3J E96 DJDE6 π E96? AFD965 E9C@F89 G6?ED]k^Am kAm}@CE@? pF5F3@? w@DA:E2= FD6D 2 %C2?6 :46 32EE6CJ DJDE6] %C2?6 D2:5 :ED :46 32EE6C:6D 2C6 @7E6? FD65 2=@?8D:56 EC25:E:@?2= 2:C 4@?5:E:@?:?8[ 2?5 E96 :4632D65 4@@=:?8 π FD65 E@ =@H6C 6?6C8J 4@DED 5FC:?8 A62< 56>2?5 E:6D] %96 EC25:E:@?2= pr 4@A@?6?ED 2C6 EJA:42==J =67E π A=246 @C 5@H?D:K65 H96? :46 32EE6C:6D 2C6 25565]k^Am kAm%96 DE@C65 :46 5@6D?VE C6BF:C6 6?6C8J E@ E92H[ H9:49 C65F46D E96 DEC2:? @? E96 8C:5 2?5 :?::K6D E96 3F:=5:?8βD 6=64EC:4:EJ FD286[ F=E:2E6=J =@H6C:?8 @?E9=J 3:==D]k^Am kAmβ$E@C:?8 6?6C8J 7@C 7FCE96C FD6D π H96C6 H6βC6 8@:?8 H:E9 E96 7FEFC6 @7 E96 8C:5[β D2:5 %65 %:772?J[ D6?:@C E649?:42= =625 2E E96 qF:=5:?8 s642C3@?:K2E:@? r@2=:E:@?] w6 D2:5 k2 9C67lQ9EEADi^^2A?6HD]4@^FD?6HD^D49@@=D65F42E:@?7F?5:?842=:7@C?:286?6C2=?6HDebce_6gadcf2h66d4gbg52a72bc4eedcQm2446DD E@ 2:C 4@?5:E:@?:?8k^2m π 2 2;@C AF3=:4 962=E9 ?665 E92E π 36:?8 6I246C32E65 3J 2 k2 9C67lQ9EEADi^^2A?6HD]4@^2CE:4=6^962EH2G6DA@==FE6CDDEF5J6h36dc__ec_a7d52h3d76`f5b4fdhe64QmH2C:?8 A=2?6Ek^2m[ 2?5 :46 32EE6C:6D 2C6 2… 56>
6d>6d>
Read More: Buildings are turning to ‘ice batteries’ for sustainable air conditioning |