The Electricity Saving Thread

**kimbon** · April 16th, 2015 10:54 AM

Originally Posted by Walter

Philsat may be annoying with his penchant for using too much letter "i"s but his tip about freezers is actually valid.

Keep your fridge and freezer filled - bottles of tap water can fill empty space in the fridge, and you can fill empty space in the freezer with screwed up newspaper. Otherwise you're just cooling down air and making your fridge work much harder.

Attention Philsat, this is the correct way to say your tipid tip. seriously, I really can't understand your earlier post as my comprehension is like a 5 yrs old child.

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Originally Posted by Walter

Philsat may be annoying with his penchant for using too much letter "i"s but his tip about freezers is actually valid.

Keep your fridge and freezer filled - bottles of tap water can fill empty space in the fridge, and you can fill empty space in the freezer with screwed up newspaper. Otherwise you're just cooling down air and making your fridge work much harder.

Attention Philsat, this is the correct way to say your tipid tip. seriously, I really can't understand your earlier post as my comprehension is like a 5 yrs old child.

**kisshmet** · August 3rd, 2015 03:50 PM

Originally Posted by Walter

Philsat may be annoying with his penchant for using too much letter "i"s but his tip about freezers is actually valid.

Keep your fridge and freezer filled - bottles of tap water can fill empty space in the fridge, and you can fill empty space in the freezer with screwed up newspaper. Otherwise you're just cooling down air and making your fridge work much harder.

Its cheaper to cool an empty ref than the one filled with food items because you dont need to plug that appliance at all

If it contains food items then use it for the intended purpose of cooling food products like meats or fluids. More items more energy is spent to cool those items.

Parang sasakyan lang yan mas maraming pasahero mas maraming gas na susunugin para maihatid ang mga pasahero

Electricity saving devices are sham, dont be fooled into buying those wares

**12vdc** · August 3rd, 2015 04:11 PM

Thermodynamics 101. There is no such thing as cold, its always heat-the absence of heat is why you feel cold. Coolers works by removing heat thats why they are also called heat exchangers. Any object with volume and density is subject to heat. An empty ref will be easier to remove heat than a loaded one. you fill in the ref with water jugs then you are just adding up heat, compressor needs more work to maintain the thermostat. If you really want to speed up cooling then remove air inside the ref, unfortunately theres no such vacuum-ref in the market you need to customize in the lab.

**CVT** · August 3rd, 2015 04:59 PM

And talking about Thermodynamics,- one of my favorite subjects, in spite of my other engineering discipline.

A refrigerator is finite space,- and so the more we add into it,- then it is definitely number 1.

I'd love to see number 2, though...

OT:

The Situation in Hell

The following is supposedly an actual question given on a University of Washington chemistry mid-term. The answer by one student was so "profound" that the professor shared it with colleagues via the Internet, which is, of course, why we now have the pleasure of enjoying it as well.

Bonus Question: Is Hell exothermic (gives off heat) or endothermic (absorbs heat)?

Most of the students wrote proofs of their beliefs using Boyle's Law (gas cools when it expands and heats when it is compressed) or some variant.

One student, however, wrote the following:

First, we need to know how the mass of Hell is changing in time. So we need to know the rate at which souls are moving into Hell and the rate at which they are leaving. I think that we can safely assume that once a soul gets to Hell, it will not leave. Therefore, no souls are leaving.

As for how many souls are entering Hell, let's look at the different religions that exist in the world today. Most of these religions state that if you are not a member of their religion, you will go to Hell. Since there is more than one of these religions and since people do not belong to more than one religion, we can project that all souls go to Hell.

With birth and death rates as they are, we can expect the number of souls in Hell to increase exponentially. Now, we look at the rate of change of the volume in Hell because Boyle's Law states that in order for the temperature and pressure in Hell to stay the same, the volume of Hell has to expand proportionately as souls are added.

This gives two possibilities:
1. If Hell is expanding at a slower rate than the rate at which souls enter Hell, then the temperature and pressure in Hell will increase until all Hell breaks loose.
2. If Hell is expanding at a rate faster than the increase of souls in Hell, then the temperature and pressure will drop until Hell freezes over.

So which is it?

If we accept the postulate given to me by Teresa during my Freshman year that, "it will be a cold day in Hell before I go out with you", and take into account the fact that I went out with her last night, then number 2 must be true, and thus I am sure that Hell is exothermic and has already frozen over.

The corollary of this theory is that since Hell has frozen over, it follows that it is not accepting any more souls and is therefore extinct . . . leaving only Heaven, thereby proving the existence of a divine being, which explains why last night Teresa kept shouting "Oh, my God!"

THIS STUDENT RECEIVED THE ONLY "A".

Language Jokes * An Essay on Hell from Chemistry 101

"The measure of a man is what he does with power" LJIOHF!

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**12vdc** · August 3rd, 2015 05:34 PM

2years na pala yung suggestion ni philsat, dami siguro napaniwala nag lagay ng tubig sa ref at iniwan yelo sa freezer.

Yung yelo is endothermic kaya it absorbs heat while melting. So kung madami kang yelo, matatagalan lang tumaas ang temperature sa loob ng ref, pero once na nag on na ang compressor, mas matagal ito aandar at kokonsumo ng kuryente dahil ibabalik nya sa frozen state yung yelo. Sana po ay mas malinaw na sa iba kung bakit hindi tipid sa kuryente ang konsumo tip ni philsat.

Kung gusto nyo po tumipid ang ref, replace with inverter(higher EER), then always clean the door seals para indi pumasok ang init/hangin/moisture na nag ccause ng ice buildup. Laging tangalin ang ice buildup/ defrost esp near the thermostat sensor.

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2years na pala yung suggestion ni philsat, dami siguro napaniwala nag lagay ng tubig sa ref at iniwan yelo sa freezer.

Yung yelo is endothermic kaya it absorbs heat while melting. So kung madami kang yelo, matatagalan lang tumaas ang temperature sa loob ng ref, pero once na nag on na ang compressor, mas matagal ito aandar at kokonsumo ng kuryente dahil ibabalik nya sa frozen state yung yelo. Sana po ay mas malinaw na sa iba kung bakit hindi tipid sa kuryente ang konsumo tip ni philsat.

Kung gusto nyo po tumipid ang ref, replace with inverter(higher EER), then always clean the door seals para indi pumasok ang init/hangin/moisture na nag ccause ng ice buildup. Laging tangalin ang ice buildup/ defrost esp near the thermostat sensor.

**_Cathy_** · August 9th, 2015 11:01 PM

What's estimated electricity cost of a 24 in LCD TV for 8 hrs?

**StockEngine** · August 9th, 2015 11:11 PM

Originally Posted by _Cathy_

What's estimated electricity cost of a 24 in LCD TV for 8 hrs?

Meralco has computations on their website.

24incher might be using 25w

For 8 hrs..its less than 10 pesos

**_Cathy_** · August 9th, 2015 11:17 PM

Originally Posted by StockEngine

Meralco has computations on their website.

24incher might be using 25w

For 8 hrs..its less than 10 pesos

Wow! Your estimate is spot on

Meralco only has 25 inch option and it costs P10.36 per day

I have a small 20+ year old ref (probably 6 cu ft) and I'm thinking of just transferring all the contents to our kitchen ref. My Mom has been complaining about our utility bills but she is making contra about me replacing it with a new ref. I think this will reduce our Meralco bill by at least P500.

**StockEngine** · August 10th, 2015 12:17 AM

One of the many money leaks....is the rubber gasket for the fridge door. If its dangling then your refrigerator compressor is running almost full power hourly. It should be replaced every 5-7yrs depending on the wear. Instead of paying 400 pesos monthly, it isprobably tripling your bill. Also if this fridge is inside an airconditioned room, the added heat the from the compressor working overtime is making the room a/c work harder too lol. Compounded costs lol.