|
Thread Number: 94945
/ Tag: Modern Dryers
Futures of laundromat dryers |
[Down to Last] |  |
|
| Post# 1195846 , Reply# 1 12/22/2023 at 14:07 by me (Essex, UK) | ||
|
www.electroluxprofessiona... | ||
Post# 1195849 , Reply# 2 12/22/2023 at 15:42 by Logixx  (Germany) |
||
They have been in existence for a while | ||
|
Post# 1195854 , Reply# 3 12/22/2023 at 17:40 by Launderess (Quiet Please, There´s a Lady on Stage) |
||
Unimac: unimac.com/international/product...
IPSO: ipso.com/products/tumble-dryers/... aqualogic.com.au/wp-content/uplo... aqualogic.com.au/product/ipso-tu... Danube: www.danube-international.... Fagor: www.fagorprofessional.com... Primus: primuslaundry.com/en/primus-intr... Heat pump dryer technology for commercial/industrial dryers has been around for forty years or more in Europe. Thus it's not exactly something new as others have stated. One main issue with laundromats however would come from cycle times. There is an exact ratio between washer/extractors and dryers of all types in various commercial/industrial or OPL laundries. What you don't want is things coming out of washer and having to sit about because a dryer isn't free. Same applies in laundromat. We all know what it's like to be there with a load of wet wash and no dryers available. Often this is because people have wandered off and aren't there to take their washing out of dryer when it's done. That's easily sorted, just bung stuff into a cart and push it aside. When dryers however cannot keep up with washing things become an issue. It can lead to poor ratings by customers of a laundromat and low satisfaction. Depending upon capacity, heating source (which influences how fast things dry) usually washers usual ratio is 1.2 lbs of dryer capacity for every 1 lb of washer capacity. Or looking at it another way ratio of 1:2 to 1:4 (washers/dryers). Normally it takes about it takes about 1200 BTU to evaporate 1 pound of water. Since a dryer is not 100% efficient, we use 2500 BTU/lb to make up for any inefficiencies. Simple calculation would be Drying time (hrs.) equals (Load weight, lbs) x (% water retention) x (2500 BTU/lb) divided by (BTU per hour rating of dryer). As with everything else more water extracted by washing machine (or separate extractor) leaving less residual moisture per load equals faster drying times. In USA at least most laundromats make their money on dryers. New model washers/extractors that claim to have better extraction than machines of old (and they do) which in theory should shorten time in dryer. Most laundromats in USA use either natural gas or propane for heating dryers. This is for various reasons but top of list would be for most areas of this country gas is cheaper than electricity. In terms of heating power gas ranks #1 followed by steam then electricity. | ||
|
Post# 1195855 , Reply# 4 12/22/2023 at 17:49 by Launderess (Quiet Please, There´s a Lady on Stage) |
||
|
This bit from Electrolux pretty much sums things up:
www.electroluxprofessiona... Historically heat pump dryers (again used in Europe) couldn't match faster cycle times of vented dryers heating with gas, steam or electricity. This lead to slower productivity unless other ways were found to compensate. So on the one hand energy use did (or does) decrease when using heat pump dryers, but since cycle times were longer this came at a trade off. Electrolux claims latest heat pump dryers with modern technology can dry a full load taking only five or maybe ten minutes longer than a vented dryer. | ||
|
Post# 1195880 , Reply# 6 12/23/2023 at 05:17 by Launderess (Quiet Please, There´s a Lady on Stage) |
||
|
"In Europe it's about 50/50, but I don't know any US laundromat that does not have stacked dryers."
While not common yes, there are laundromats with large dryers which by necessity stand alone. More and more American laundromats are going with 40lb to 80lb washer/extractor. At some point it makes sense to have one or more large, huge or jumbo dryers so entire load from those larger washers will fit into one dryer. Customers and or wash/fold service also want larger washers and dryers for doing things such as large queen or king sized duvets or maybe more than one of smaller twin or full. kingpelicanlaundromat.com/self-s... www.wisconsinhistory.org/... Then you simply have those with very large loads they want done all at one go. At our local laundromat have seen people time and time again cram lone 60lb washer until nothing else will fit in drum. Smart people know they cannot fit all that wash into one of the stacked dryer and split load. Others don't have a clue and force all that washing into one dryer. At local laundromat the lone 60 | ||
|
Post# 1195881 , Reply# 7 12/23/2023 at 05:25 by Launderess (Quiet Please, There´s a Lady on Stage) |
||
|
For tunnel (batch) washer and even single or divided pocket washer/extractors most commercial/industrial laundries go with steam where heating of water is necessary over electric resistive. There are many reasons for this but IIRC steam gives up more heat faster than other ways and you don't have bother of scale and whatever else harms or builds up on heating elements.
Commercial laundries also use various methods of reclaiming heat from waste water to preheat cold water before it reaches washer. Such heat exchange saves energy. Above is coupled with fact most laundries do not start from cold water and do "profile" washes. There might be a cool or warm flush/pre-wash but commercial/industrial laundries supply washers with "hot" water at 140F to 160F or above right out of taps so to speak. | ||
|
Post# 1195882 , Reply# 8 12/23/2023 at 05:33 by DaveAMKrayoGuy (Oak Park, MI) |
||
 | ||
|
Post# 1195884 , Reply# 9 12/23/2023 at 06:54 by Launderess (Quiet Please, There´s a Lady on Stage) |
||
|
Generally because it involves public health laundries and other places are given wider scope on many issues. This includes current hate against natural gas or other fossil fuels.
Current federal and or local regulations and so forth already have driven up costs for laundries of all sorts. This explains why so many laundromats and laundries are closing. This and or the massive consolidation that has been going on for a few decades. You can only charge but so much per pound of wash. Laundries have responded by using more energy efficient equipment. Batch/tunnel washers for instance can dramatically reduce water and energy use. | ||
| Forum Index: |
| Other Forums: |
|
|
|
|
|
Comes to the Rescue!
