Rapid Delivery for recharged hot water bag to Ghana Importers
Place of Origin:Zhejiang, China (Mainland) Brand Name:NUANYI Model Number:NY0077 classification:hand warmer stlye:with cover (can put hand in bag) Product name:electric hot water bag Item name:electric warm bag weight:1.4kg Style:custom size:26*18.5cm Material: Flannelette,PVC Voltage:220V(110v) Power:380w Charge time:8-15min Warm time:3-8 hours Manufactor: Cixi Jade Rabbit Electric Appliance Factory Approved Certificate:CE ROHS Wire length:75(80)cm Max...
Rapid Delivery for recharged hot water bag to Ghana Importers Detail:
|Place of Origin:Zhejiang, China (Mainland)|
|stlye:with cover (can put hand in bag)|
|Product name:electric hot water bag|
|Item name:electric warm bag|
|Warm time:3-8 hours|
|Manufactor: Cixi Jade Rabbit Electric Appliance Factory|
|Approved Certificate:CE ROHS|
Product detail pictures:
Assume full responsibility to meet all demands of our clients; achieve continuous advancements by promoting the growth of our clients; become the final permanent cooperative partner of clients and maximize the interests of clients for Rapid Delivery for recharged hot water bag to Ghana Importers, The product will supply to all over the world, such as: Grenada , Lithuania , Costa rica , We pursue the management tenet of "Quality is superior, Service is supreme, Reputation is first", and will sincerely create and share success with all clients. We welcome you to contact us for more information and look forward to working with you.
This little Stirling engine continues to surprise me! I thought it would be interesting to try it out as a heat pump (Stirling engines are reversible in function from engine to heat pump) by driving it with the motor/generator for a time and monitor the head temperature compared to the cooling water temp. I inserted the cylinder into an insulated box of 40 cu. in. volume and also monitored the temperature in the box. I taped a thermocouple probe to the bottom of the cylinder and the upper number on the thermometer shows this temperature. I used the non-contact thermometer, the lower number, to monitor the cooling water temp.
As you can see, it was able to generate a 57°F temperature drop and cooled the insulated space down to 36°F! That’s refrigeration temperature! Actually, as the last photo shows, the temperature of the diaphragm at the top of the cylinder was 102°, a difference of almost 75° between top and bottom!
I really didn’t expect it to reach such low temps since the engine has a very low compression ratio, so again I was pleasantly surprised by its performance. I’m sure there is a lot of room for improvement yet, too.
So now I’m wondering if one of these engines would drive another as a heat pump, or even using several inline? Stay tuned. Very fun stuff!
[Note: after I posted this video I tried reversing the wires and driving the engine the other direction - in about 10 minutes the head reached 162 deg. and the box was at 120 deg.]
Cooking Hot Dogs with beer, onions and chicken stock!