Heat exchanger: Difference between revisions
SafwatHalaby (talk | contribs) m (typo) |
No edit summary |
||
| Line 1: | Line 1: | ||
{{Languages}}{{:Infobox:Heat exchanger}} | {{Languages}}{{:Infobox:Heat exchanger}} | ||
The '''heat exchanger''' | The '''heat exchanger''' takes heat from [[heat pipe]] or [[nuclear reactor]] heat pipe connections and transfers it to water to produce steam. | ||
Heat exchangers produce 103 steam | Heat exchangers produce ~103 steam every second with a temperature of 500°C. | ||
They must heat up to 500°C before they produce steam, from a starting temperature of 15°C. | |||
Like a boiler they have two pipe connections on opposite short ends for water, and an output pipe for steam. Opposite the steam output, three heat pipe connections may be used to supply heat from a nuclear reactor. | |||
<!-- This paragraph is to describe the use of this machine --> | |||
== Calculating steam production rate == | == Calculating steam production rate == | ||
The steam production rate is not shown in the game toolboxes, however a heat exchanger is shown to consume 10MW. Because 200J (joules - a unit of energy) heats 1 unit of water 1 degree in the game, and that water is heated from 15°C to 500°C, a difference of 485 degrees, producing 1 unit of 500°C steam consumes 97000J, or 97kJ. (the heat of vaporization is ignored) A watt is the amount of energy transfered per unit of time, a joule every second. As a heat exchanger consumes 10 megawatts, 10000000 joules every second, or 10000kJ/s. Dividing this by the 97kJ/steam, the rate of steam production is found. <code>10000kJ/s / 97kJ/steam = 103.092783505 steam/s</code> | |||
<!-- If there is a better way of showing math students how to handle units when dividing please make the necessary changes--> | |||
<!-- "Another way to calculate this is by relying on [[Steam turbine]] data; A steam turbine consumes 60 steam/second and produces 5.8MW (assuming 500°C steam). This means a single unit of 500°C steam has <code>5.8MW / 60/s = 0.09666 MJ</code> of energy. A steam engine produces 10 MJ a second, therefore it produces <code>10MJ / 0.0966MJ = 103.448275862 </code> steam a second." In this previous edit: the first code segment was missing a 0 after the decimal (fixed here), and Steam Turbines actually produce 5.82MW making the decimals simpler. Apologies for not fixing it, but perhaps this belongs under steam turbines as thats where the 5.82 is derived. ... The temperature of starting water, the temperature of ending steam are both given in game, as well as the patch note for the heat capacity of water so this seems like the better documented route to explain it. Its more direct in showing the amount of energy stored in steam.--><!-- This also clarifies over the previous version that neither steam or the exchanger can not be heated up to 50,000C and possibly makes it easier to follow as its somewhat preferable to suggest something is a temperature rather than having a quantity of temperature to distribute to boiling water. Its usually energy thats distributed not temperature. --> | |||
Heat | == Heat capacity == | ||
A heat exchanger connected to a working nuclear reactor may increase in temperature to the reactors maximum temperature of 1000°C. Heat exchangers have a heat capacity of 1 MJ/°C. They require 485MJ of energy to warm up from 15°C to 500°C when initially placed. Because they do not produce steam below 500°C, they, and usually the connected reactors, will not cool below this temperature. If there are insufficient heat exchangers for the power generated by the connected reactors, or insufficient or stopped water supply to the heat exchanger it will buffer up to 500MJ of heat energy as its temperature raises above 500°C. This energy can only be used to produce steam, and under no circumstances will the temperature of the steam produced be above 500°C. | |||
== Effects on other machines == | |||
* [[Steam engine]]s are not recommended, as they consume full units of 500°C steam to only produce 30kJ/steam (wasting 69%). | |||
* The steam produced my be [[pump]]ed and may also be stored in [[storage tank]]s. | |||
* It is not recommended to use steam produced by heat exchangers for [[coal liquefaction]] over [[boiler]]s as it currently wastes energy without additional benefit, and coal is likely available. | |||
<!-- Verification needed. --> | |||
== Trivia == | |||
Thermal energy, or heat, is conveniently transported in fluids and gases. In many reactor designs heat is transfered outside the reactor vessel and used to heat water elsewhere. Heat pipes represent the medium to transfer this heat. Heat exchangers represent the use of this heat to create steam. | |||
== History == | == History == | ||
{{History|0.15.0| | {{History|0.15.0| | ||
* Introduced}} | * Introduced | ||
* Doubled the heat capacity of water from 0.1kJ per degree per liter to 0.2kJ}} | |||
<!-- Documentation for heat capacity of water used in calculations. --> | |||
== See also == | == See also == | ||
Revision as of 01:32, 4 June 2018
 |
Heat exchanger |
|
Recipe |
|
    |
|
|
Total raw |
|
 |
|
Recipe |
|
|
|
|
|
Total raw |
|
|
|
|
Map color |
|
|
Fluid storage volume |
Input: 200 |
|
Health |
200 |
|
Resistances |
Explosion: 0/30% |
|
Stack size |
50 |
|
Dimensions |
2×3 |
|
Energy consumption |
10 MW |
|
Maximum temperature |
1000 °C |
|
Mining time |
0.1 |
|
Prototype type |
|
|
Internal name |
heat-exchanger |
|
Required technologies |
|
 |
|
|
Produced by |
|
    |
|
The heat exchanger takes heat from heat pipe or nuclear reactor heat pipe connections and transfers it to water to produce steam.
Heat exchangers produce ~103 steam every second with a temperature of 500°C.
They must heat up to 500°C before they produce steam, from a starting temperature of 15°C. Like a boiler they have two pipe connections on opposite short ends for water, and an output pipe for steam. Opposite the steam output, three heat pipe connections may be used to supply heat from a nuclear reactor.
Calculating steam production rate
The steam production rate is not shown in the game toolboxes, however a heat exchanger is shown to consume 10MW. Because 200J (joules - a unit of energy) heats 1 unit of water 1 degree in the game, and that water is heated from 15°C to 500°C, a difference of 485 degrees, producing 1 unit of 500°C steam consumes 97000J, or 97kJ. (the heat of vaporization is ignored) A watt is the amount of energy transfered per unit of time, a joule every second. As a heat exchanger consumes 10 megawatts, 10000000 joules every second, or 10000kJ/s. Dividing this by the 97kJ/steam, the rate of steam production is found. 10000kJ/s / 97kJ/steam = 103.092783505 steam/s
Heat capacity
A heat exchanger connected to a working nuclear reactor may increase in temperature to the reactors maximum temperature of 1000°C. Heat exchangers have a heat capacity of 1 MJ/°C. They require 485MJ of energy to warm up from 15°C to 500°C when initially placed. Because they do not produce steam below 500°C, they, and usually the connected reactors, will not cool below this temperature. If there are insufficient heat exchangers for the power generated by the connected reactors, or insufficient or stopped water supply to the heat exchanger it will buffer up to 500MJ of heat energy as its temperature raises above 500°C. This energy can only be used to produce steam, and under no circumstances will the temperature of the steam produced be above 500°C.
Effects on other machines
- Steam engines are not recommended, as they consume full units of 500°C steam to only produce 30kJ/steam (wasting 69%).
- The steam produced my be pumped and may also be stored in storage tanks.
- It is not recommended to use steam produced by heat exchangers for coal liquefaction over boilers as it currently wastes energy without additional benefit, and coal is likely available.
Trivia
Thermal energy, or heat, is conveniently transported in fluids and gases. In many reactor designs heat is transfered outside the reactor vessel and used to heat water elsewhere. Heat pipes represent the medium to transfer this heat. Heat exchangers represent the use of this heat to create steam.
History
- 0.15.0:
- Introduced
- Doubled the heat capacity of water from 0.1kJ per degree per liter to 0.2kJ
See also
|
Production items |
|
|---|---|
|
Tools |
|
|
Furnaces |
|
|
Space related |
|
