Go Back   Team-BHP > Around the Corner > Shifting gears > Gadgets, Computers & Software


Reply
 
Thread Tools Search this Thread
Old 9th April 2010, 19:03   #916
BHPian
 
Join Date: Aug 2009
Location: Trivandrum
Posts: 913
Thanked: 366 Times
Default

By reading through the site, it looks like a Direct Current air conditioner. Going by their claim of not using the compressor (and hence using less electricity), I think it should be possible to run them on inverter batteries.
jinojohnt is online now   Reply With Quote
Old 9th April 2010, 19:10   #917
Distinguished - BHPian
 
Thad E Ginathom's Avatar
 
Join Date: Jun 2007
Location: Chennai
Posts: 7,725
Thanked: 6,933 Times
Default

If you click on the brochure PDF link, there are some diagrams.

It means nothing to me. Can someone who didn't fail dismally at physics explain how they are using solar heat to cool?
Thad E Ginathom is offline   Reply With Quote
Old 9th April 2010, 19:44   #918
Senior - BHPian
 
Join Date: Sep 2007
Location: New Delhi
Posts: 3,079
Thanked: 251 Times
Default

Quote:
Originally Posted by Abes View Post
I found this about solar air conditioner. They are offering big a/c systems for commercial use. Have anyone checked/tried it out?
This is old technology that was widely used in refrigerators and other cooling applications.
It is still used for refrigerated ware houses or wherever 'waste' heat is available as a source of energy.

Absorption or Adsorption Cooling Systems.
Absorption refrigerator - Wikipedia, the free encyclopedia

Thermax, India offer some systems too:
http://www.thermaxindia.com/Absorption-Cooling.aspx

Last edited by anupmathur : 9th April 2010 at 19:47.
anupmathur is offline   Reply With Quote
Old 9th April 2010, 22:56   #919
Distinguished - BHPian
 
Thad E Ginathom's Avatar
 
Join Date: Jun 2007
Location: Chennai
Posts: 7,725
Thanked: 6,933 Times
Default

Thanks.

Now I remember, from my distant childhood, gas refrigerators, which had a flame at the bottom at the back --- and how impossible to light they were when the flame went out!
Thad E Ginathom is offline   Reply With Quote
Old 10th April 2010, 07:32   #920
BHPian
 
deadman's Avatar
 
Join Date: Sep 2006
Location: KA-20
Posts: 205
Thanked: 3 Times
Default

Quote:
Originally Posted by recshenoy View Post
IMHO, 15 hours a day surely needs a 5 start rated A/C or at least an AC which has lower power consumption.

What is the consumption of LG A/C you bought?
Just like to share my experience after Fitting Air conditioner.

Model : LG - LSA3NF3VF1 Capacity : 1.0 Ton 3 Star Rating
Daily Usage Of A/c : 12 hours (day night mix)
First Month Bill after fitting A/c: Rs 600 extra in Electricity bill.
deadman is offline   Reply With Quote
Old 10th April 2010, 08:43   #921
Team-BHP Support
 
mobike008's Avatar
 
Join Date: Sep 2006
Location: Hyderabad
Posts: 10,612
Thanked: 7,716 Times
Default

Quote:
Originally Posted by deadman View Post
Just like to share my experience after Fitting Air conditioner.

Model : LG - LSA3NF3VF1 Capacity : 1.0 Ton 3 Star Rating
Daily Usage Of A/c : 12 hours (day night mix)
First Month Bill after fitting A/c: Rs 600 extra in Electricity bill.
Thats a steal. I mean the negligible increase in EB even after using it for 12 hours a day
mobike008 is offline   Reply With Quote
Old 10th April 2010, 12:01   #922
BHPian
 
Abes's Avatar
 
Join Date: Jan 2009
Location: Salalah
Posts: 201
Thanked: 57 Times
Default

Quote:
Originally Posted by anupmathur View Post
This is old technology that was widely used in refrigerators and other cooling applications.
It is still used for refrigerated ware houses or wherever 'waste' heat is available as a source of energy.

Absorption or Adsorption Cooling Systems.
Absorption refrigerator - Wikipedia, the free encyclopedia

Thermax, India offer some systems too:
Thermax | Absorption Cooling
Quote:
Originally Posted by Thad E Ginathom View Post
Thanks.

Now I remember, from my distant childhood, gas refrigerators, which had a flame at the bottom at the back --- and how impossible to light they were when the flame went out!
So the flame is replaced by solar heating.

I checked with the mechanical engineer in our office, according to him, the system is low pressure, if there is a leak, air will go inside. Hence difficult to maintain.

Where as the compression system is high pressure. so if there is a leak, the refrigerant will leak to the outside. Hence it is easier to replace the refrigerant.

Its old technology and doesn't require much electrical power, why is it not popular? Cost or maintenance issues?
Abes is offline   Reply With Quote
Old 10th April 2010, 13:16   #923
Senior - BHPian
 
Join Date: Sep 2007
Location: New Delhi
Posts: 3,079
Thanked: 251 Times
Default

Quote:
Originally Posted by Abes View Post
....
Its old technology and doesn't require much electrical power, why is it not popular? Cost or maintenance issues?
As far as I know, there are no serious issues!
Why this technology was abandoned remains a mystery to me! It's probably because the West found it needlessly hazardous for home use! They do not have power outages, y'see.
I dare say with the pathetic state of electricity supply in India this technology would still be THE most suitable for our requirements!! At least your LPG gas cylinder doesn't act up!

Last edited by anupmathur : 10th April 2010 at 13:17.
anupmathur is offline   Reply With Quote
Old 11th April 2010, 16:57   #924
BHPian
 
surd_biker's Avatar
 
Join Date: Dec 2009
Location: Mumbai
Posts: 116
Thanked: 30 Times
Default

Guys please suggest me a good split ac. Mumbai is becoming hotter day by day. Guess its the global warming effect. I have two bedrooms 150 + 110 sq ft. Which is the best split ac to buy? Also would a 1T be sufficient for 150 sq ft room? Also nowadays I am hearing a lot about multi room split acs which have only one outdoor unit for the two indoor units. Has anyone used these and any pros/cons of using these vis-a-vis two separate split acs?
surd_biker is offline   Reply With Quote
Old 11th April 2010, 17:50   #925
Distinguished - BHPian
 
Thad E Ginathom's Avatar
 
Join Date: Jun 2007
Location: Chennai
Posts: 7,725
Thanked: 6,933 Times
Default

I went for a stroll today and had a look around e-Zone shop, just window shopping.

Walked around the AC dept, and was shocked to see that Hitachi 2-ton is 56,000!
Thad E Ginathom is offline   Reply With Quote
Old 11th April 2010, 18:13   #926
BHPian
 
nick17s's Avatar
 
Join Date: Feb 2010
Location: New Delhi
Posts: 529
Thanked: 86 Times
Default

definitely no "samsung" I have very bad experiences with 2 samsung window a/cs.
nick17s is offline   Reply With Quote
Old 11th April 2010, 20:58   #927
BHPian
 
sourav9385's Avatar
 
Join Date: Jul 2007
Location: London, U.K
Posts: 435
Thanked: 729 Times
Default

Hello all

I just purchased a Voltas Vertis Premium 1.5 Ton split, 3 Star with EER - 2.80 today for 23k. Price includes 4KVA stabilizer from Voltas and installation charges as well. Being a Sunday, the AC was just delivered to my place. Installation will be done tomorrow. Date of manufacturing printed on the unit is December 09.

Will let you all know how this works after it's installed. Thanks to all who helped me with my previous posts
sourav9385 is online now   Reply With Quote
Old 11th April 2010, 22:22   #928
BHPian
 
Abes's Avatar
 
Join Date: Jan 2009
Location: Salalah
Posts: 201
Thanked: 57 Times
Default

Quote:
Originally Posted by nick17s View Post
definitely no "samsung" I have very bad experiences with 2 samsung window a/cs.
O Oh! I have two 1.5 ton Samsung window ACs with remote. They are just 5 months old. What problems did you face?

Last edited by Abes : 11th April 2010 at 22:25.
Abes is offline   Reply With Quote
Old 11th April 2010, 23:21   #929
BHPian
 
Join Date: Aug 2007
Location: Mumbai/BLR/USA
Posts: 927
Thanked: 185 Times
Default

Quote:
Originally Posted by Guite View Post
Hi khoj,

I did a similar calculation (posted in a previously here (Which home/office AC (air conditioner) to buy ?)) and what I found out was that buying a 5 star rated AC does not make much financial sense. It may make more financial sense if:- (a). You use high capacity e.g. 2.5 ton, and (b). Usage duration is very high, say 20 hours a day.

On the other hand you calculation confuses me. The difference between 5* and 2* from your list seem more like 1250-1080 = 170 watt = 0.17 units per hour.
Monthly consumption = 0.17 units x 15 hours a day x 7 days x 4 weeks = 71.4 units.
However my experience is that full power is consumed only about half the time. So 71.4 x 0.5 = 35.7 units @ Rs.5 = Rs.178.50p per month x 6 months usage in a year = Rs. 1071 per annum. In other words, the running cost of the 2* is Rs.1071 more than the 5*, year on year.

So theoretically, the pay back period for the above 5* model when compared to the 2* model is Rs.8000/Rs.1071 = 7.5 years!
Good calculation however it is based on an assumption that prices/ unit of electricity will remain constant. My friend Prices for power are going to double /triple in the coming years that when really efficiency matters.

However I always think green by consuming less resources. Go for energy efficient models the extra bit of money invested will pay dividends in future definitely.
tj123 is offline   Reply With Quote
Old 11th April 2010, 23:35   #930
BHPian
 
iamswift's Avatar
 
Join Date: Oct 2009
Location: Madras
Posts: 178
Thanked: 61 Times
Post

Bought Panasonic CS-KC18KKY
1.5T, 4*
Price around 30K.

CS-KC18KKY | econ Sapphire | Home Appliances | Panasonic India

Delivered and installed in same day.
No initial startup issues.
iamswift is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Automotive air conditioner servicing & maintenance vebmetal Technical Stuff 168 11th October 2017 17:58
Fitting an Air-conditioner in the Maruti 800 navdeep Technical Stuff 95 24th March 2012 17:07
Correct refrigerant level of a automobile air conditioner Sang Technical Stuff 6 15th May 2009 10:26
Best ROOM Air conditioner Max Shifting gears 2 3rd April 2006 09:52


All times are GMT +5.5. The time now is 11:11.

Copyright 2000 - 2017, Team-BHP.com
Proudly powered by E2E Networks