Abstract: A sectional heat exchanger for a condensing heat cell comprises two end segments and one or more than one intermediate segment(s). The one or the more than one intermediate segment(s) and the two end segments are assembled in the heat exchanger. A combustion chamber is provided in the sectional heat exchanger. Each of the one or the more than one intermediate segment(s) comprises at least one water flow channel for water to be heated. Between each two consecutive segments at least one flue gas flow channel is provided, extending from the combustion chamber. The one or the more than one intermediate segment(s) each comprise a horizontal row of ribs extending into the flue gas flow channel in order to increase heat exchange from the flue gas to the water to be heated. Ribs at the two outer sides of the horizontal row of ribs have a larger height than ribs in the middle of the row of ribs. With height of the rib is meant the dimension of the rib in the vertical direction of the sectional heat exchanger.

Abstract: A sectional heat exchanger for a heat cell. The sectional heat exchanger having two end segments and one or more intermediate segment(s) provided between the two end segments which are assembled in the heat exchanger. A combustion chamber is provided in the sectional heat exchanger, perpendicular to the one or more intermediate segment(s), each of the one or more intermediate segments having at least one flow channel for a fluid to be heated. In between each two consecutive segments at least one flow channel for flue gas is present. The total width of the sectional heat exchanger decreases over at least part of the length in the direction away from the combustion chamber. The depth of the flow channels for flue gas decreases in the direction away from the combustion chamber. The distance between the two walls delimiting the intermediate segment increases in the direction away from the combustion chamber.

Abstract: The heat exchanger comprises at least one gas flow channel, at least one water flow channel, and a metal wall delimiting the gas flow channel from the water flow channel. The at least one water flow channel comprises a number of consecutive parallel straight segments. Two consecutive parallel straight segments are separated by a wall and by a U-turn comprising an upstream section and a downstream section. The upstream and the downstream sections are defined as the sections of the U-turn delimited on the one hand by the plane of the wall separating the two consecutive parallel straight segments; and on the other hand by the plane through the end section of the wall separating the two consecutive parallel straight segments, the plane which is parallel with the width direction of the water flow channel and which is perpendicular to the plane of the wall separating the two consecutive parallel straight segments.

Abstract: The present invention discloses an illumination device (100). The illumination device (100) comprises a light source (110) arranged to generate light, a carrier (120) arranged to support the light source and an envelope (130) enclosing the light source and the carrier. The envelope comprises at least two enveloping parts which, when joined together, form the envelope. Further, the carrier is arranged in thermal contact with at least one of the enveloping parts for dissipating heat out of the illumination device.

Abstract: The heat exchanger comprises at least one gas flow channel, at least one water flow channel, and a metal wall delimiting the gas flow channel from the water flow channel. The at least one water flow channel comprises a number of consecutive parallel straight segments. Two consecutive parallel straight segments are separated by a wall and by a U-turn comprising an upstream section and a downstream section. The upstream and the downstream sections are defined as the sections of the U-turn delimited on the one hand by the plane of the wall separating the two consecutive parallel straight segments; and on the other hand by the plane through the end section of the wall separating the two consecutive parallel straight segments, the plane which is parallel with the width direction of the water flow channel and which is perpendicular to the plane of the wall separating the two consecutive parallel straight segments.

Abstract: A sectional heat exchanger for a heat cell. The sectional heat exchanger having two end segments and one or more intermediate segment(s) provided between the two end segments which are assembled in the heat exchanger. A combustion chamber is provided in the sectional heat exchanger, perpendicular to the one or more intermediate segment(s), each of the one or more intermediate segments having at least one flow channel for a fluid to be heated. In between each two consecutive segments at least one flow channel for flue gas is present. The total width of the sectional heat exchanger decreases over at least part of the length in the direction away from the combustion chamber. The depth of the flow channels for flue gas decreases in the direction away from the combustion chamber.

Abstract: The present invention discloses an illumination device (100) and a method (4000) for assembly of such an illumination device. The illumination device (100) comprises a light source (110) arranged to generate light, a carrier (120) arranged to support the light source and an envelope (130) enclosing the light source and the carrier. The envelope comprises at least two enveloping parts which, when joined together, form the envelope. Further, the carrier is arranged in thermal contact with at least one of the enveloping parts for dissipating heat out of the illumination device. The method comprises the steps of mounting (4100) the light source in thermal contact with the carrier and enclosing (4200) the light source and the carrier with the envelope. The present invention is advantageous in that it provides a convenient design which facilitates the assembly of the illumination device. Further, the present invention is advantageous in that it provides an illumination device with improved heat transfer.

Abstract: The present invention discloses an illumination device (100). The illumination device (100) comprises a light source (110) arranged to generate light, a carrier (120) arranged to support the light source and an envelope (130) enclosing the light source and the carrier. The envelope comprises at least two enveloping parts which, when joined together, form the envelope. Further, the carrier is arranged in thermal contact with at least one of the enveloping parts for dissipating heat out of the illumination device.

Abstract: The present invention provides an illumination device (100) comprising a light source (110) arranged to generate light, a carrier (120) arranged to support the light source and an envelope (130) enclosing the light source and the carrier. Further, the carrier is arranged in thermal contact with the envelope and both the envelope and the carrier are made of ceramic material. The present invention is advantageous in that it provides an illumination device providing an effective heat transfer.

Abstract: The present invention provides an illumination device (100) comprising a light source (110) arranged to generate light, a carrier (120) arranged to support the light source and an envelope (130) enclosing the light source and the carrier. Further, the carrier is arranged in thermal contact with the envelope and both the envelope and the carrier are made of ceramic material. The present invention is advantageous in that it provides an illumination device providing an effective heat transfer.

Abstract: The present invention discloses an illumination device (100) and a method (4000) for assembly of such an illumination device. The illumination device (100) comprises a light source (110) arranged to generate light, a carrier (120) arranged to support the light source and an envelope (130) enclosing the light source and the carrier. The envelope comprises at least two enveloping parts which, when joined together, form the envelope. Further, the carrier is arranged in thermal contact with at least one of the enveloping parts for dissipating heat out of the illumination device. The method comprises the steps of mounting (4100) the light source in thermal contact with the carrier and enclosing (4200) the light source and the carrier with the envelope. The present invention is advantageous in that it provides a convenient design which facilitates the assembly of the illumination device. Further, the present invention is advantageous in that it provides an illumination device with improved heat transfer.