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Posts by Polsyr  

Joined: 19 Sep 2011 / Male ♂
Last Post: 12 Dec 2015
Threads: 6
Posts: 769
From: Warsaw, Poland
Speaks Polish?: Yes
Interests: Mechanics

Displayed posts: 775 / page 25 of 26
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Polsyr   
9 Feb 2012
Life / Question about hot water in Poland and the use of water heaters? [52]

Why?

Because I expect stricter regulations with regards to boiler emissions in the future, and this will make it increasingly more difficult for charcoal fired boilers to remain competitive because the cost of complying with stricter regulations will eventually outweigh the savings generated by using lower cost fuel (coal vs. oil or gas). This is what happened in North America over the years. Both Canada and the US have massive reserves of coal, yet most homes in both countries are heated with either centrally generated steam or oil/gas fired boilers. Of course, greener energy like solar will be used more often, but it will not become the primary source of heating energy for some time to come due to capital cost.

Also, since the cost of buying energy is going up, people will inevitably look for lower cost alternatives, such as district heating, and investors will see this as an opportunity to cash in.

Remember, most of New York City is heated by centrally generated steam, and the same goes for many other large cities. If it can be done in NY, it can be done in Krakow. It is not easy to retrofit a system to an existing city, but it can be and has been done elsewhere.

I am not very familiar with Skawina, but with will, and equally importantly, money, they could probably get their steam to where it is needed.

Technically speaking, the distance that steam can travel depends on the quality of the installation and the pipes being used. Hot water is easier to deal with, but carries lower energy content and therefore larger pipes and higher flow rates are needed, which results in more energy being used just to pump the heat carrying medium.
Polsyr   
6 Feb 2012
Life / Question about hot water in Poland and the use of water heaters? [52]

I work in central heating and cooling for a living, especially district cooling and district heating, where a plant feeds chilled/hot water and/or steam into a large network which in turn feeds several buildings.

The rule of thumb with these systems is that the bigger they are, they more efficiently they run. This is true in the majority of cases. Quality of equipment, fuel/energy source and climatic conditions also play a role.

I am also involved in servicing boilers almost on daily basis. No rocket science. Nearly every plant has duty + standby boilers so you don't always have to shut down the plan to service one boiler. Scheduled and preventative maintenance is the key for smooth operation.

The concept of large district heating plants is going to be a very "hot" topic in Poland over the next 10-15 years by my reckoning.

Regarding heat exchangers, they need to be opened and cleaned periodically, and the frequency of cleaning depends mainly on the water quality and the difference in temperature between the cold side and the hot side. Some heat exchangers are plate design, which is compact but has many gaskets that need to be replaced whenever the plates are cleaned. Others are shell and tube design, which tends to be larger and requires more complex tools and skills for cleaning, however, they have fewer gaskets to replace and therefore may potentially cost less to operate on the long run.

I have attached a picture of an insulated steam pipe sample that I found in my office. This is similar to what is used in central and district heating. This particular pipe is 15mm diameter, schedule 40 carbon steel, with 50mm rock wool insulation and aluminum cladding. Overall diameter is about 14cm. A pipe this size is about enough to provide 60kW of heating power (or about 100kg/hr of steam which is enough for a 500 square meter modern house for example). For district heating, pipes with sizes up to 1m diameter or even more are used. Putting this infrastructure in place is expensive and time consuming, not to mention difficult.



Polsyr   
27 Jan 2012
Law / Bank account in Poland which does not use SMS [13]

friends in Poland you can actually still use the mBank acount - just leave (send) them your Polish simcard

This is what we are doing actually. The problem is not related to the bank as much as it is related to the service provider you are using in the other country.
Polsyr   
19 Jan 2012
Food / Black pudding & kaszanka [30]

Jeez you guys made me real hungry and it is still two hours before lunch time... lol...
Polsyr   
19 Jan 2012
Food / Black pudding & kaszanka [30]

I also like kaszanka and flaczki...

Kaszanka has grains in it by the way...
Polsyr   
12 Jan 2012
Real Estate / A plot in Lesznowola near Warsaw - Bargain or not? [15]

WOW, I really can't thank you guys enough for your thoughtful responses! Lots to think about!

Well, it looks like the plot in Lesznowola will fall through, because supposedly the owner found a bidder offering 150/m.

However, it might just be a chance for us to really look around without a sense of urgency, which should help us find something better.

I will update this thread again once I know more :)

Well I said I would update so here we go. We ended up inheriting a place. Not the best location but! When we are ready we will buy an apartment (not a house!) in the city.
Polsyr   
11 Jan 2012
Real Estate / A plot in Lesznowola near Warsaw - Bargain or not? [15]

I know what you guys are talking about. I am in building services related industry by trade (climate control) and I know building anything (even a shed) can be very complicated... But we really want to build our "dream home". Regardless, we will look around and see what we find...

The idea is, if we live near Lesznowola, we can be close to the construction site and supervise directly...

Too far fetched?
Polsyr   
10 Jan 2012
Real Estate / A plot in Lesznowola near Warsaw - Bargain or not? [15]

hydrogeological conditions

Thank you... Very sensible advice.

I have no idea about land prices in the area... This is intended for our own residence, not as an investment.
Polsyr   
10 Jan 2012
Real Estate / A plot in Lesznowola near Warsaw - Bargain or not? [15]

We were offered a plot in Lesznowola (which is a suburb of Warszawa) of 1000 square meters for 135,000 Zl.

Is this a good deal or not? Anyone familiar with land prices in the area?
Polsyr   
5 Jan 2012
News / Poland being the powerhouse of Europe [40]

visit the oil-rich gulf states - Qatar and KSA come to mind

It certainly is NOT on the up. My business there has shrunk to less than 2008 levels. Media lies and the boom is just a myth. My business in Poland is actually growing at the moment. I work in a construction and manufacturing related industry.
Polsyr   
10 Dec 2011
Law / Bringing a Car to Poland from outside of EU? [6]

Has anyone tried to bring a car from outside EU to Poland?

My wife and I were wondering if we can buy a new car from GCC (where cars are at least 20% cheaper than in EU) and take it to Poland for personal use.

The vehicle will probably be a Skoda Octavia RS, built to EU5 emissions standards.

We heard of other people doing this, but we could not find official info on this subject...
Polsyr   
28 Nov 2011
Off-Topic / What languages do you know? [51]

Fluent: English, Arabic
Intermediate: Aramaic
Beginner: Polish
Some basic understanding of: French, German, Italian and Russian
Polsyr   
2 Nov 2011
News / Poland 39. in Human Development Index 2011 [7]

Seriously this scale is not really representative of what things are like...

There are countries that are ahead of Poland on this scale that have an artificially inflated HDI due to the fact that their populations consist of 80% or more foreign workers... If you remove these from the list, then other countries (including Poland) will move up a few spots on the scale...
Polsyr   
14 Oct 2011
Life / Ideas for constructive Immigration methods for Poland. [30]

Very well said!

Some promotions wouldn't hurt. American, Canadian and British (not to mention Australian and even French and German) universities send educational missions all over the world to introduce people (particularly from developing nations) to their educational systems and opportunities...

You gain immensely when an intelligent human being comes to your country to learn and then becomes an active part of your society.

People tend to underestimate how far this goes towards helping their own nations develop and prosper.